Ore-sizing apparatus



(No Model.)

I. P. MONELL. ORE SIZING APPARATUS. No. 270,825. ed Jan.16,1 883.

wrmnssns INVENTOR d ma J $771M ATTORNEYS.

UNITED STATES PATENT OFFICE.

IRA F. MONELL, OF ORISMAN, COLORADO.

ORE-SIZING APPARATUS.

SPECIFICATION forming part of Letters Patent No..270,825, dated January16, 1883.

Application filed September 19,1882. (No model.)

To all whom it may concern:

Be it known that 1, IRA F. MONELL, of Crisman, in the county of Boulderand State of Colorado, have invented an Improved Ore- Siziug Apparatus,of which the following is a full, clear, and exact description.

My invention consists of an improved arran gement of apparatus forsizing ores, for preparing them for concentration or amalgamation, afterbeing crushed or stamped, all as hereinafter fully described. Referenceis to be had to the accompanying drawings, forming part of thisspecification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure l is a perspective view of the apparatus which I employ forsizing ores. Fig. 2 is a plan view of one of the sieves. Fig. 3 is afront elevation of the same, and Fig. 4 is a longitudinal sectionalelevation of the sieve.

. The ore coming from the stamp-mill is to be discharged onto ashaking-sieve, (1., along which it passes, under perforated pipes b,which, by sprinkling the water down upon the ore, thus passing beneath,will wash the fineo'res through the sieve to better advantage than whenmade to flow over the sieve along with the ore, as in the ordinary way.A

0 represents strips of sheet metal, placed on the sieve across thecourse along which the ore flows, to form slight riffles by their upperedges to arrest the finer ores and cause them to fall through the meshesof the sieve.

The finer ores, passing through the sieve, fall onto the apron (I, andpass onto another sieve a, similar to the upper one, except that it is alittle finer, to be treated, as before, by water sprinkled on it fromperforated pipes b, and by passing over similar metal strips 0. Thegraded ores pass ofi' from the respective sieves by apronsfinto troughsg, by which they are conducted to the concentrators oramalgamating-pans. Water for this purpose is supplied by the pipes h,discharging into the troughs. The water is supplied to the perforatedsprinkling-pipes b by the main pipe 2'.

I will use three or more sieves, together with their adjuncts, accordingto the number of grades of ores it is desired to make, the successivesieves being placed in successively lower planes. The sieves a andaprons d are supported at successively lower elevations upon a table, j,bottom-grooved to fit on trackways 7:, so that the power may be appliedto a connection, m, and the table reciprocated back and forth to shakethe sieves.

A trough, O, is provided to receive the fine ore from the last apron dof the series. It is well known that a proper sizing of the ore prior toamalgamation or concentration economizes the quicksilver, whose actionis then more uni form, and that the fine particles of metal are notliable to be floated to the top, out of contact with the quicksilver, soas to be ultimately washed away and 10st.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

'1. In an ore-sizing apparatus, the combination, with a series ofsuccessively lower and finer sieves, of a series of successively loweraprons, (I, each carrying the finer ore to. the next lower sieve in theseries until the last apron is reached, and cross-troughs withwater-supply pipes at the ends of the sieves to carry ofi' one grade ofcoarse ore after each sitting, whereby the ore will be separated into asmany grades of coarse ore as there are sieves, besides the grade of fineore discharged from the last apron, as described.

2. The combination, with the shaking-sieve a, of an apron,f, a trough g,and a water-supply pipe, h, emptying into the trough, whereby the gradedores are carried off, as described.

3. The combination, in ore separating apparatus, of a series of sievesof successively finer mesh, perforated sprinklingpipes, troughs, aprons,and water-pipes, substantially as herein described, the said perforatedpipes being arranged to sprinkle the water on the ores, substantially asdescribed.

IRA I MONELL.

Witnessesi B. S. Gaoee, E. J. MoUoRMIcK.

